Saddle for reenforcing bars



A. G. HATCH.

SADDLE FOR. REENFORCING BARS.

APPLICATION men MAR-28, 1921-.

1 406,379, Patented Feb. 14, 1922,

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PATENT OFFICE.

ARTHUR G. HATCH, OF DULUTH, MINNESOTA.

SADDLE FOR REENFORCING Bans.

Application filed March 28, 1921.

o (r 1 wr/zom 215 may concern.

Be it known that I, An'rrrtfn G. l-lx'rcn,

.a citizen of the United States, residing at Duluth. in the county of St. Louis and State of Minnesota, have invented certain new and useful Improvements in Saddles for Reenforcing liars, of which the following is a specification.

This invention relates to a new and improved saddle tor reenforcing bars, and more particularly to a device of the class described which is adapted to be attached to the bars and is further provided with means fonpreserving the spacing of adjacent bars.

ln the use of steel bars in reentorcing concrete, it is necessary that the bars be maintained a predetermined distance above the lower face of the concrete in orderthat they may be sufficiently surrounded by the concrete to be able to render their maximum efliciency. It has been general practice heretofore to provide various forms of chairs or saddles which have usually been either fastened to the forms or placed loosely thereon.

These saddles have not been generally con-.

nected to the reentorcing bars.

It is an object of the present invention to provide a form oi saddle for reent'orcing bars having a turn adapted to encircle the bar sufliciently to maintain the saddle in engagement therewith, and to provide a plurality of spaced bar seats.

It is a further object to provide a saddle which when so attached to the bar will normally maintain a proper position for supporting the bar.

It is an additional object to provide a saddle of this type which is provided with means adapted to prevent adjacent bars from moving closer together than a predetern'iined distance.

It is also an object to provide a saddle which is simple in design and cheap in construction and which maybe readily attached to or detached from the 'reenforcing bars.

Other and further objects will appear as the description proceeds. Y

Broadly, my saddle comprises a piece of bent wire or strip metal formed in a manner to encircle .1 reentorcing bar and provide a plurality of spaced feet extending below the bar. Additional features comprise the fact that the turn about the bar is of suflicient length to provide two spaced seating surfaces, and further in that in the preferred Specification of Letters Patent- Patented Feb. 14. 1922.

ser'ialno. 456,399.

form one at least f the supporting legs has a portion thereof formed to engage anadjacent bar to prevent the bars being forced too close together. i I have illustrated certain preferred embodiments of my invention in the accom- -pauying drawings, in which- Figure 1 is a cross section showing a number of reentorcing bars in relation to the forms for the concrete;

Figure 2 is a plan view of Figure 1;

Figure 3 is a fragmentary view similar to Figure 1 and showing a modified form of the device; and

Figure 4 isa view similar to Figure 3 showing a further modification.

Referring first t Figure 1. the spaced forms 5 and 6 adapted to containbetween them a concrete beam, are supported upon The reentorcing bars-8 the framework t. and 9 are located within the forms in a po 'sition to properly reen'lorce the beam tobe cast therein. The bar 8. as shown in Fig ures 1 and 2. is supported upon chairs or saddles. These saddles 10 comprise a left leg 11 which extends diagonally upward to the bar'S and thencontinues as a. curved seat 12 under the bar. The turn of the member continues the curves 12. spirally about the bar 8 to form. a second seat under the bar and from the point 13 it extends downwardly to form the right leg 14. After making contact with the forms at 15, the right leg. turns upwardly to form a vertical finger 16 which extends into the plane of the bars 8 and 9. The saddles for the bar 9 are similar to that just described, with the exception that the right leg 16 is not extended to form the spacing finger.

The form of the device shown in Figure 3 is similar to that shown in Figures 1 and 2,- With the exception that the right leg 14 has a flat portion 17 in engagement with the term 5. This portion is of sufiicien't length so that the spacing finger 16 engages the bar 9 to maintain it at the proper distancefrom the bar 8'. I The form of saddle shown in Figure 4 differs somewhat from that described in that the turn about the bar 18 continues up to the point 19 and the saddle then extends laterally at- 20 and is formed with a depression 2}. to receive the second bar 22. The saddle then extends downwardly to form the right lo" 23. I

lt will be seen that in all forms of my de vice, the saddleprovidestwo spaced seating curvesQfor the bar, due to the fact that ,the saddleiscontinued around the bar spirally for it distance greater than one com- Wplete circle lt is to be understood that the ispecial for-in of the device shown in Figure 4 may be placed upon either bar, or both bars in reverse direction, so that certain of 1 the saddles may be retained upon one bar and others upon the other 'bsr. Saddles with spacing elements may be used exclusively or in combination with the simple form of the saddles.

-The form of saddle shown at the left of Figure 1 may be provided with a spacing finger at a'dlstance from the bar governed by the minimum allowable spacing for bars in the concrete, or as shown in Figure 3, the fingerinay be spaced at any specific disifl tancepin 'orderto positively space the bars thatdistanc'e.

In the form of Figure 1, it is simply in tended to prevent a dangerous amount oi relative displacement of the bars; while in 26 Figure 3 it is intended to positively space "the bars. The form shown in Figure 4 positively spaces the bars.

All these forms of saddles are formed of relatively light Wire-and may be shipped in condition with the bar-engaging 10*: p somehat open, and may thus be readily applied the bars and brought to shape manually. ihiiinportant feature of the form oi the dece shown in Figures 1 to 3 particularly lies i 15111 the fact that if the saddles are applied to the bars with a slight looseness, they will bev swung by gravity to the proper position and the bars may then be quickly placed in e-"the forms without the necessity for atten- .tion to each individual saddle.

These forms of saddles may be easily and cheaply manufactured from standard sizes oi? Wire and may be readily appliedby unskilled labor, and will positively locate the.

any displacing thrust due to the pouring of.

the concrete.

1 claim:

l. A. saddle for rceniiorcing bars, comprising a continuous member forming a pair of spaced supporting legs joined by an open spiral connecting;portion of more than one turn forming a plurality of spaced seats for the bar and maintaining the bar in the seats.

2. saddle for reeni'orcing bars, comprising a continuous member forming a pair of spaced supporting legs joined by an open spiral connecting portion of more than. one turn forming a plurality of spaced seats for the bar and maintaining the bar in the seats, the legs extending from the connecting por tion upon opposite sides of the seat portions and upon approximately radial lines.

3. saddle for reenforcing bars, comprising a continuous member forming legs,

and a seat for a bar, one of said legs being extended upwardly from its foot to engage another bar located approximately parallel to the first bar to limit movement of the tw bars toward each other.

4. A saddle for reeni'orcing bars, comprising a continuous member forming lens, the portion intermediate said legs being a loop of more than a complete circumference adapted to form a plurality of'spiu-ed seats for a bar, and one of said legs being extend ed upwardly.from its foot to engage another bar located apprimimately parallel to the first bar to limit movement of the two bars toward each other.

Signed at Duluth, lVlinnesota, this 21st day of March, 1921.

ARTHUR G. HATQiL 

